Marine Animals

The ocean titan, identified as a new species of giant ichthyosaur, could have been as big as a blue whale.

Experts are getting involved to get to the bottom of the worrying phenomenon that is killing Florida's critically endangered smalltooth sawfish.

Landmark moment as 1,000th individual oceanic manta ray is recorded in Maldivian waters. The Indian Ocean archipelago has the third largest population in the world, after Ecuador and Mexico.

The way fish move has a significant impact on how noisy the school is, according to a new study. Engineers say the finding could lead to the development of stealthier underwater vehicles.

Cephalopods are an exclusively marine group comprising octopuses, cuttlefish, squids and nautiluses says Stuart Blackman

The eyes of this tiny, transparent bristle worm are so big that its vision is comparable to that of octopuses and mammals. Scientists think it may have something to do with a secret language related to mating...

Have you heard of the Johnson's abyssal seadevil? Read about this strange ocean animal and more in our guide to the world's weirdest sea creatures

The deepest photosynthesising coral in the world and 160 species – at least 50 of which are believed to be new to science – observed during a deep-sea expedition at Chile’s Salas y Gómez Ridge.

A subpopulation of transient killer whales has been recorded using specialised techniques to hunt sea lions, seals and whale calves in deep submarine canyons off the coast of California, say scientists

We reveal a fascinating insight into evolution's optical wonders

Conservationists witness (and film) a synchronised mass coral reef spawning for the first time in Cambodian waters.

Using genetic analyses and oceanographic modelling, scientists have discovered that remote coral reefs around the Seychelles are closely related – a breakthrough that could aid future coral restoration projects.

A team of scientists believe they have discovered over 100 new marine species – including fish, shrimp and corals – following a three-week exploration of New Zealand's vast Bounty Trough.

Degraded coral reefs can grow as fast as healthy reefs after just four years with the use of sand-coated steel webs known as 'Reef Stars', according to new research.

The fossils of a new species of marine lizard that lived 66 million years ago provide evidence that our oceans were once filled with a vast number of apex predators compared to today.

Rumours of a shark being the father to Charlotte the stingray's pups weren’t true – but the real story is even more fascinating...

Thanks to hybridisation between fin and blue whales, and a phenomenon called introgression, blue whales in the North Atlantic have surprising levels of fin whale DNA.

Researchers in Japan are using underwater drones to learn about low-light coral habitats in tropical and subtropical waters. The scientists hope that the new technique will help them understand “the entire spectrum of the coral reef".

What is the hairiest animal in the world? And just how hairy is it?

Learn all about the vaquita, the world's smallest and rarest cetacean in this expert guide from Whale and Dolphin Conservation

Amid concerns about the risk of upcoming marine heatwaves, 25 critically endangered red handfish have been removed from the wild in a bid to save the species from extinction.

The winners of the 2023 Ocean Art Underwater Photo Contest have been revealed. Browse a selection of the best images and discover how the incredible shots were taken.

Research into the lives of these mysterious creatures is offering a ray of hope in the Maldives, says Tamara Hinson